I have a sunsynk 5kw and a hubble AM2 5.5.  Currently I'm getting a very high cycles count (2-3 per day).

What timer and percentage setting can I use to ensure 1 count per day? I assume doing this will give me better battery life?

1 minute ago, Terminal3k said:

I have a sunsynk 5kw and a hubble AM2 5.5.  Currently I'm getting a very high cycles count (2-3 per day).

What timer and percentage setting can I use to ensure 1 count per day? I assume doing this will give me better battery life?

The big problem is the dishonest counting system the BMS uses . This will not affect battery life but it will dramatically affect your warranty of 3000 cycles. If it was counting properly a cycle should be 5-5,5kwh. Your best bet would be to use less than 50% so set your SOC on 55 and prioritize the battery so it does not go below 55 and see how that affects the cycles .

1 minute ago, Nexuss said:

The big problem is the dishonest counting system the BMS uses . This will not affect battery life but it will dramatically affect your warranty of 3000 cycles. If it was counting properly a cycle should be 5-5,5kwh. Your best bet would be to use less than 50% so set your SOC on 55 and prioritize the battery so it does not go below 55 and see how that affects the cycles .

I understand doing this, but I want to try and maximise the use out of the battery for cost saving... 

Just now, Terminal3k said:

I understand doing this, but I want to try and maximise the use out of the battery for cost saving... 

Unfortunately you cant do both it seems . Personally i would complain to Hubble because there is no reason the BMS should be counting cycles like a 3 year old toddler. For interest sake it might be worth doing some tests to see how much you have to discharge to get to 2-3 cycles a day because its probably not 10-15kwh?  then you can present the data to Hubble and see what they say about it. It seems like a really sneaky move to get out of warranties quickly and it stinks of dishonesty IMHO. I would love to be proven wrong .

5 minutes ago, Nexuss said:

Unfortunately you cant do both it seems . Personally i would complain to Hubble because there is no reason the BMS should be counting cycles like a 3 year old toddler. For interest sake it might be worth doing some tests to see how much you have to discharge to get to 2-3 cycles a day because its probably not 10-15kwh?  then you can present the data to Hubble and see what they say about it. It seems like a really sneaky move to get out of warranties quickly and it stinks of dishonesty IMHO. I would love to be proven wrong .

its not close to 15 per day. here are my battery usage stats:

9 minutes ago, Terminal3k said:

its not close to 15 per day. here are my battery usage stats:

Those stats will definitely be at least 2 cycles per day.
My Hubble has been in use since last year in Aug and I am now at 344 cycles, i.e. 21 cycles away from 365 which gets me to 6 days short of one calendar year usage as I had 6 instances of exceeding the battery capacity in one day within this year.
So I can only state that in my case the cycle count has been pretty accurate. These are the last couple of days

Edited July 25, 20224 yr by zsde

8 minutes ago, Terminal3k said:

its not close to 15 per day. here are my battery usage stats:

First day looks like 1 cycle and the rest like 2 probably if it was counting reasonably .Do you know which days counted 3 cycles ? 

16 minutes ago, zsde said:

Those stats will definitely be at least 2 cycles per day.
My Hubble has been in use since last year in Aug and I am now at 344 cycles, i.e. 21 cycles away from 365 which gets me to 6 days short of one calendar year usage as I had 6 instances of exceeding the battery capacity in one day within this year.
So I can only state that in my case the cycle count has been pretty accurate. These are the last couple of days

Could you share your inverter settings please? 

13 minutes ago, Nexuss said:

First day looks like 1 cycle and the rest like 2 probably if it was counting reasonably .Do you know which days counted 3 cycles ? 

I don't know. I will keep note of them in the future 

53 minutes ago, zsde said:

Those stats will definitely be at least 2 cycles per day.
My Hubble has been in use since last year in Aug and I am now at 344 cycles, i.e. 21 cycles away from 365 which gets me to 6 days short of one calendar year usage as I had 6 instances of exceeding the battery capacity in one day within this year.
So I can only state that in my case the cycle count has been pretty accurate. These are the last couple of days

Thats pretty interesting ! From the graphs on the Hubble website they claim 3000 cycles at 100% DOD so counting 1 cycle for 3,6kwh charged  and 3,5kwh discharged or anything less than 110Ah/5,5kwh seems unfair. I also noticed the cell they used is 120 Ah and the latest firmware people are using only allows 105Ah.

https://www.hubblelithium.co.za/uploads/1/3/5/0/135079623/am-2_discharge_graph_and_dod.pdf

Edited July 25, 20224 yr by Nexuss

2 minutes ago, Nexuss said:

Thats pretty interesting ! From the graphs on the Hubble website they claim 3000 cycles at 100% DOD so counting 1 cycle for 3,6kwh charged  and 3,5kwh discharged or anything less than 110Ah/5,5kwh seems unfair. 

https://www.hubblelithium.co.za/uploads/1/3/5/0/135079623/am-2_discharge_graph_and_dod.pdf

I don't disagree with you. From my observations, any SOC below 50% before recharge seems to log 1 cycle and it seems as soon as 20% SOC is reached and a 80% recharge is required then it counts the second cycle. I am not defending Hubble on the cycle counts, but I have a sneaky suspicion that a certain elapsed time between the last charge cycle and the next charge actually triggers a cycle too. No, I have no proof, only my observations.
My battery is normally between 30 and 40% SOC in the morning but I have had days where it was 50+% in the morning and as soon as the first solar charge starts, the cycle count increases by 1. So without knowing their programmed logic, we can only guess what parameters they apply to do the count.
Up to now I have been satisfied as I had no reported loss of capacity, but my cycles increase by 1, no matter what the SOC in the morning. Having said that, I have never been able to test it with lets say 80 or 90% SOC as my system is off-grid. Nothing but solar.

 

47 minutes ago, Terminal3k said:

Could you share your inverter settings please? 

Am on a Growatt Inverter that is set to the LI Protocol 52 as per the Hubble instructions. So most values are preset and cannot be altered. Only way to change that would be to go to USE mode. Prefer the BMS comms protocol as it seems to work well enough. Only drawback is the 20%SOC system shutdown which the BMS triggers. In reality that means the 5,5kW supposed battery is only a 4,4kW available energy supplier. 
 

5 minutes ago, zsde said:

Am on a Growatt Inverter that is set to the LI Protocol 52 as per the Hubble instructions. So most values are preset and cannot be altered. Only way to change that would be to go to USE mode. Prefer the BMS comms protocol as it seems to work well enough. Only drawback is the 20%SOC system shutdown which the BMS triggers. In reality that means the 5,5kW supposed battery is only a 4,4kW available energy supplier. 
 

Do you not have timer settings like this to share? Im not sure how Growatt works.

 

Just now, Terminal3k said:

Do you not have timer settings like this to share? Im not sure how Growatt works.

 

There are timer settings which I have never touched as I have no grid feed into the inverter. I rely totally on the Solar Panels and as a back up I can flick my change over switch to grid or revert to generator should that need ever arise.

Hmm, okay. Anyone have an idea on what settings I can use to reduce the number of counts?

So in essence limiting my battery usage to 5kw per day...

Edited July 25, 20224 yr by Terminal3k

12 hours ago, Nexuss said:

Thats pretty interesting ! From the graphs on the Hubble website they claim 3000 cycles at 100% DOD so counting 1 cycle for 3,6kwh charged  and 3,5kwh discharged or anything less than 110Ah/5,5kwh seems unfair. I also noticed the cell they used is 120 Ah and the latest firmware people are using only allows 105Ah.

https://www.hubblelithium.co.za/uploads/1/3/5/0/135079623/am-2_discharge_graph_and_dod.pdf

Just to follow up on another example.
My battery discharged to 50% SOC overnight. As soon as the first charge started, the cycle count went up to 345.
SolarAssistant Totals start adding up from Midnight for the new day. You will see that was 1,1kW discharge so far then since midnight. And even if I add the total discharge for yesterday, that would be 4,6kW. 
So one can only guess their cycle count formula in the absence of official transparent documentation.
 

I have a setting to keep my battery charged at 20% overnight. Keeping at 20% used 3 cycles! I will definitely be changing some settings.... 

55 minutes ago, zsde said:

Just to follow up on another example.
My battery discharged to 50% SOC overnight. As soon as the first charge started, the cycle count went up to 345.
SolarAssistant Totals start adding up from Midnight for the new day. You will see that was 1,1kW discharge so far then since midnight. And even if I add the total discharge for yesterday, that would be 4,6kW. 
So one can only guess their cycle count formula in the absence of official transparent documentation.
 

On Solarman i have total battery power charged and discharged since system commission,do you have something like that on Solar Assistant? If you do it would be interesting to see what you had to charge and discharge total to get to 345 cycles. In theory you should be able to divide the total discharged amount by 5,5 to get the true number of cycles.

Maybe just don't charge it from grid overnight. Un-tick the grid-charge boxes, let it start charging from solar in the morning, with battery priority over load, and keep the cycle from 4pm to ensure charge to 100%.Assuming you have panels, because it's not stated. On the side, maybe try to finish that 4-6:30pm charging period before the evening peak time starts, like 5:30pm. Just to be nice to Eskom and the rest of the country.

What's your inverter's absolute shut-off percentage? Lower than 20%, like say 10%? Could be that anytime you suffer a grid fault local to your area you charge down to 10% and then when grid is restored you cycle back up again, but only to 20%Just speculating here.

Check some Youtube videos, specially one from GoProSolar, that show how the Sunsynk timer settings work.

Other thoughts, try to keep the setting for zero export to load (not to CT), without selling, and maybe lower your charging current to say 50A (depends on your amount of panels), to see if your amount of battery cycling reduces. Going on an assumption here that the Sunsynk's settings are comparable to the Deye.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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1 hour ago, Nexuss said:

On Solarman i have total battery power charged and discharged since system commission,do you have something like that on Solar Assistant? If you do it would be interesting to see what you had to charge and discharge total to get to 345 cycles. In theory you should be able to divide the total discharged amount by 5,5 to get the true number of cycles.

Only have the total discharge count in the Growatt Shinephone App. Solar Assistant only gives the daily and the monthly totals which one can add up I suppose. I only started using SA around 2 months after commissioning the system.
If I had to divide the 1100kWh by 5,5 then that would be 200 cycles. Dividing it by the available 4,4kW at 80%DOD it would get to 250

Edit: Just spoke to Hubble. If the battery drops below 50%, they count that as 1 cycle. 🙄 That in my mind means they add the discharge plus charge. At 50% you used 2,75kW plus the charge back to 100% is another 2,75kW which makes up 5,5kW as the cycle.  

Edited July 26, 20224 yr by zsde

thanks for the advice.

1 hour ago, GreenFields said:

On the side, maybe try to finish that 4-6:30pm charging period before the evening peak time starts, like 5:30pm. Just to be nice to Eskom and the rest of the country

I do already. doing my bit to help the country 😅

 

1 hour ago, GreenFields said:

What's your inverter's absolute shut-off percentage? Lower than 20%, like say 10%

my battery / inverter is set to shut down at 10%. But when i know there is loadshedding, I keep my battery charged from the gird

 

1 hour ago, GreenFields said:

Other thoughts, try to keep the setting for zero export to load (not to CT), without selling, and maybe lower your charging current to say 50A (depends on your amount of panels), to see if your amount of battery cycling reduces. Going on an assumption here that the Sunsynk's settings are comparable to the Deye

will give that a try, thanks

7 hours ago, zsde said:

At 50% you used 2,75kW plus the charge back to 100% is another 2,75kW which makes up 5,5kW as the cycle.  

Based on this, if I take my battery to 20% then regardless what I do, I'll have 2 cycles. 

 

33 minutes ago, Terminal3k said:

Based on this, if I take my battery to 20% then regardless what I do, I'll have 2 cycles. 

Thats exactly what I asked the guy at Hubble and he said yes, that would probably be the case. You may only see the second cycle early next day but that may also cause the alternating 3rd cycle on certain days as the 5,5kW total (charge+discharge) is added up.

1 hour ago, zsde said:

 

Thats exactly what I asked the guy at Hubble and he said yes, that would probably be the case. You may only see the second cycle early next day but that may also cause the alternating 3rd cycle on certain days as the 5,5kW total (charge+discharge) is added up.

Funny how cycles are counted. Logic for me would be a full discharge and recharge back to full. But yes I have lost my logic 😭

7 minutes ago, Scorp007 said:

Funny how cycles are counted. Logic for me would be a full discharge and recharge back to full. But yes I have lost my logic 😭

You didn't lose your logic. The OEMs are bending the rules and get away with it. If you have the money, you could probably take them to court, but they have the legal team that will fight it and they do have the money for an extended court case. And they know it. So the one with enough resources may win his case and they are prepared to settle with the odd person that has the time and resources. Without a class action lawsuit nothing will change in the way they conduct their business.